发明授权
US5666616A Wet-type image forming apparatus for forming a condensed toner image
失效
用于形成浓缩调色剂图像的湿式图像形成装置
- 专利标题: Wet-type image forming apparatus for forming a condensed toner image
- 专利标题(中): 用于形成浓缩调色剂图像的湿式图像形成装置
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申请号: US542724申请日: 1995-10-13
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公开(公告)号: US5666616A公开(公告)日: 1997-09-09
- 发明人: Mie Yoshino , Makoto Obu , Takeo Tsukamoto , Seiichi Miyakawa , Yusuke Takeda , Masami Hiramatsu
- 申请人: Mie Yoshino , Makoto Obu , Takeo Tsukamoto , Seiichi Miyakawa , Yusuke Takeda , Masami Hiramatsu
- 申请人地址: JPX Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX6-284423 19941024; JPX7-158558 19950531
- 主分类号: G03G15/06
- IPC分类号: G03G15/06 ; G03G15/10 ; G03G15/11
摘要:
A wet-type image forming apparatus produces a high-quality toner image by condensing a toner image on a photosensitive drum and adhering the toner image onto the photosensitive drum without contacting a liquid carrier applied on the photosensitive drum. The photosensitive drum carries a latent image formed thereon. The toner image is formed by developing the latent image by using a developing liquid including the liquid carrier and toner dispersed in the liquid carrier. An excessive amount of liquid carrier on the photosensitive drum is removed after the toner image is formed. An electric field is formed which causes a current to flow between an electrically conductive member and the photosensitive drum. An air gap is formed between the liquid carrier on the photosensitive drum and the electrically conductive member so that the current flows through the gap, the liquid carrier and the toner image. The toner image on the photosensitive drum is transferred to a transfer material after the toner image passes an area in which the electric field is generated.
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